Terrazzo strip



July 16, 1935 E. s. CORNELL, JR RANK@ TERRAZZO STRIP Filed DBG.` 31, 1951 2 Sheets-Sheet 2 l INVENTOR Ed @rd 5. Covad [.Jr.

TTO NEY l UNiTiatD,Y slm-TES PATENT lo-Frlcr:

- n p 2,007,9551Qf i" TERRAzzostrani;r Edward S. Cornell, Jr., I larcllmont,N. Y. p Applieatidn Deemheei, 19311,L serial-N0. 584,020 f A 4 claims.VV (older-147);

`My present `invention relates to` patterns or guide strips for plastic work and more particularlyltoan improved pattern or guide strip for l Awsurface coverings such as terrazzo flooring and the Mlike.v l Y v An Vobject of my invention is to provideV an improved devicewhich may be easily and accu# 553 ""mof Fig. 5;

l tion will beV "longitudinally ofthe material in which the same is ears blanked out but before of my device;

rately-placed in position'and which when in posiprevented vfrom moving laterally or placed.

An `object of my invention is a pattern or4 guidegstrip ofthis character in'whicli the upperV ...and lower edges are continuous `or unbroken and 'in which is formed a plurality'of openings along the length of the strip, such openings being ofa character to enable a bonding action to-ftake place between materialslof the plurality oflayers in which the same 20"" is placed during the laying of ater'1azzo-floor. i

` An objectof my invention is a means for preventing too great depression of the strip into the` under o-r screed. layer of a terrazzo `floor and i which, Ywhen in position defines a parting line between the screed and terrazzo layers.

^ object of my invention is an improved pattern or guide strip of this character in which a plurality of ears extend outwardly oneach side of ...the body, said ears being formed out of the ma-Lk "`teri al of the bodyrandso positioned asU to have the horizontal level of material of the bodybelow the suchears intact or unbroken.

Other objects and novel features of` theV conf structionv and" arrangement of parts comprisingl myimproved devioewill appear as the description of `the invention progresses.'

\ the accompanying drawings:

i Fig. 1` is a perspective view'of the preferred form l., of" my invention; `4o

Fig. 2 is a sectionalplan view on the line 2-2 oflig.` 1;. l

Fig. 3 is a side elevation of a portion of a strip showing the material vof the laterally extending d bending vthe Asame intoiinal shapeand position; l

Fig. ll is a seetinal end elevationr on the line of Fig. l', showing the same in position in a y i the' ears I i andi 2 form a'shelf which defines the view of a modified form section of terrazzo `flooring Fig. 5is a perspective `Fig. 6Yis a side-elevation ofa portion of a strip and showing the material to ultimately formthe lugs blanked out but in position in the strip;

Fig.`7 is `afsectional plan'view on the line `I -'I' along the length te` noted. that iiooring` wherein 2 2` Adesignates the Y cement laidjthereom'and 24 side thereof, rears Il andl I2, it .being understood thatalthoughbut .one each of the ears VII` and I2! are showmwthat aplurality of such ears are provideifbeing A'arranged in spaced relationship of the` strip I0. Referring specically toFig 3, there is formed lengthwise ofthe strip I0 a-slot I3, this `slot being formed byV a. punch` or any` other suitable manner. A

'Blanked out from `the material of the strip III4 vand qalongthey lines I4; I5,`

I6, I'I land I8 is a. blank which obviously forms at itsupper endthe ear s"Ily and I2.` It will be` noted that this bla-nk, isnot severi-:dY frorritheL `material of vthe stripwIIl being integrally united therewith at the` dettagli-,line 20. The blank defined by `the lines aboveyreferredhto is.Y thenbent `along the dotted line `I9;.-theup13er portion of such blank beingfV E moved outwardly, as viewed in Fig. 3, after which the blank isbent along the dotted line 20 forcing the portion Iiof such blank through the slot I3 andinta-the position shown in'Fg'. 2.VV It Will l the. portion of the blank defined bythe lines I'I,'` I3, I9.. and 2l) now lies perpendicular to ,the plane in .which lies the strip I I) andthis` portion `is designated` by the reference numeral 2.I.f j Referring 'specifically' to Fig. 4, showing my improvedstripin place in av section of terrazzo usual conthe screed coat of r A `the top or terrazzo layer,` the strip` I0 Lis forced through the screed layerabefore such layer has; set and the downwardmovement'of such strip I0 will continue until the ears II"`and I2 move into engagement with the top surface of such screed layer. The downward" movement istherefore arrested and crete.: aggregate base and 23 upper layer `of the screed coat 23. The terrazzo layer 24 `is now laid in position on top of the screed layer 23 and it is obvious that the various sections of the terrazzo layer as the sections 25 and 26 are bonded together by the passage of the `materials constituting such sections` 25 `andzt throughtheoriiice formed in the strip U and lower edges thereof.

70 strip itl below suoli ear 38 is imperforate.

Ias struck' out is then car 35 to cause a i by the removal therefrom of the material now forming the ears II and I2. Also, it will be obvious that the sections of the screed layer 23 adjacent each other are also bonded together by the said passage of material therefrom passing through the perforation in the strip I formed by the bending of the member 2l outward therefrom at right angles thereto.

t will be noted that the bonding between the various sections of the terrazzo layer 24 and the screed layer 23 takes place by natural flow of the materials thereof through the perforations formed by the removal of the ears I I and I2, as the material of the strip I0 immediately thereunder is imperforate and it will be obvious that there is no tamping section on the material of the screed layer 23 by the ears II and I2 to tamp such material through any perforation in the strip to cause a bonding of the section of the material thereof. This prevention of tamping of the material through a perforation by the ear II is accentuated by the presence of the member 2I extending at right angles to the strip I0 and adjacent the edge of the perforation formed by blanking out the ears II and I2.

vReferring now to Figs. 5, 6 and 7, showing a modification of my invention, the strip I0 is provided with a slot 21 extending longitudinally of the strip I0 and intermediate the upper A section of the material of the strip I0 is then blanked out along full lines 28, 29, 30 and 3I but such blank is held integral with the strip III along the material defined by the dotted line 3l.V The blank bent along the dotted une 3l, the portion 32 of the blank extending outward from the strip I0 as indicated in Fig. '1. The portion 33 of the blank is then bent along the dotted line 34 and such portion 33 defines the ears 35 and 36 respectively. The portion 31 offthe blank is then bent alongl the dotted line 33a inwardly toward the strip as easily shown in Fig. rI, thus forcing the portion 33 ofthe blank into the slot 21 so as to position the ears 35 and 36 on either'side of the strip I0 as clearly shown in Fig. 7. The portion as of the blank is then bent with respect to the portion 310i such blank along the dotted line 39 so as to lie at right angles to the strip I0 and forms a means 'for preventing longitudinal movement of the strip I0' in the screed layer 23. The strip I0 as shown in Figs. 5, 6 and 1 is assembled in the terrazzo flooring in identically the same manner as described with regard to the strip I0 in Figs. 1, 2,

"s and 4 and it will be noted that the member trnot only prevents longitudinal movement of the A'strip I0 in the screed layer but .also acts to prevent any tamping action on the part of the forced flow of the material of the screed layer 23 through the perforation in the strip le formed by the removal of the blank above described. Also, it will be noted that the prevention of longitudinal movement of the strip .id is enhanced by the construction and arrangement of the portions 32 and 31 of the blank referred to. Further no tamping action on the part of the ear 35 can take place on the material of the screed lawer 23 as the material of the .It is to be understood that the modication of my invention as shown in Figs. 5, 6 and '7 coinprehends the utilization of a plurality of pairs of ears 35 and 36 spaced along the length of the., stnpp1lmat any appropriate distances as is also the case with respect to the embodiment of my invention shown in Figs. l, 2, 3 and 4.

Referring now to Figs. 8 and 9, there is shown thestrip I0 provided with perforations 39 and 4I] spaced along the length of the strip Il), the material blanked out from the strip I0 to form such perforations 39 and 43 being held integral with the strip 40 and one of such pieces of material being bent outwardly from the strip IE) to form a member 4I or 42 extending at right angles to the strip I0 and this vmember 4I or 42 is then bent over to form an ear 43 or 44 which ears 43 and 44 lie at right angles to but extend longitudinally of the strip I0. It will be noted that the members 4I and 43 extend laterally outward from the strip I0 on one face thereof and that the members 42, 44 extend laterally outward from the opposite face of the strip IIJ. Also, each alternate pair of members 4I, 43, and 42, 44, extend laterally outward from alternate sides of the strip I0, as clearly shown in Figs. 8 and 9.

From the above, it will appear that the various types of my terrazzo strip comprise a thin strip of metal adapted to be positioned vertically in a flooring such as a screed layer and a superimposed terrazzo layer, suchstrip being provided with a plurality of sets of ear formations, each ear formation having a vertically extending portion and a horizontally extending portion, the body of the strip having a perforation adjacent the ear formation, such ear formation being integrally connected with the body of the strip at a vertical edge of such perforation, such ear formations projecting in direction relative to the body of the strip away from its associated perforation.

While I rhave necessarily shown and described the preferred embodiments of my invention somewhat in detail, it is to be understood that I may vary the size, shape and arrangement of parts comprising my improved device within relatively wide limits without departing from the spirit of the invention.

I claim:

1. A terrazzo strip comprising a thin strip of material adapted to be positioned vertically in a flooring such as a screed layer and a superimposed terrazzo layer, said strip being provided with a plurality of sets of ear formations, each ear formation comprising a vertically extending portion and a horizontally extending portion, the body of the strip having a perforation adjacent the ear formation, said vertically extending portion being integral With the body of the strip at an edge of such perforation, said horizontally extending ear portion projecting in direction away from its associated perforation.

2. A terrazzo strip comprising a thin strip of material adapted .to be positioned vertically in a flooring comprising a screed layer and a superimposed terrazzo layer, said strip being provided with a plurality of ear formations, each ear formation having a vertically extending portion and a horizontally extending portion, the body of the strip having a perforation adjacent the ear formation, the perforation having a vertical edge portion, the vertically extending portion of the ear formation being connected to the strip at the vertical edge portion of the perforation, the strip further having a slot adjacent the perforation, the horizontally extending portion of the ear formation projecting through the slot.

3. A terrazo strip comprising a thin strip of material adapted to be positioned vertically in a flooring such as a screed layer and a superimposedpterrazzo layer, said strip being provided with a plurality of sets of ear formations, each ear formation having a vertically extending portion and a horizontally extending portion, the body of the strip having a perforation adjacent the ear formation, the perforation having a vertical edge, said vertically extending ear portion being integral with the body of the strip at said `vertical edge of such perforation and extending substantially at right angles to the body of the strip, said horizontally .extending ear portion being integral with itsV associated' vertically extending ear portion and projecting in direction away from its associated perforation.

4. A terrazzo strip comprising a thin strip of n material adapted to be positioned vertically in a flooring comprising a screed layer and a superimposed terrazzo layer, said strip being provided with a plurality of ear formations, each ear formation having a vertically extending portion and a horizontally extending portion, the body of the strip having a perforation adjacent the ear formation, the perforation havinga vertical edge porition,` the vertically extending portion of the ear formation being integrally connected to the strip at the vertical edge portion of the perforation, the

strip further having a slot adjacent the perfora-V tion, the horizontally extending portion of the ear formation projecting through the slot.

EDWARD S. CORNELL, Jn. 

